ORBIT Calculator
ORBIT Calculator
What is the calculator for and who produced it?
The ORBIT bleeding risk score for atrial fibrillation predicts bleeding risk in patients on anticoagulation for atrial fibrillation.
How should it be used?
Use each of the sections to work out the points scored in that area and then add them together to give the overall ORBIT score
Interpretation of score
| ORBIT Score | Risk group | Bleeds/100 patient years |
| 0-2 | Low | 2.4 |
| 3 | Medium | 4.7 |
| 4-7 | High | 8.1 |